s390/topology: Remove CPU KOBJ_CHANGE uevents

s390 generates KOBJ_CHANGE uevents on CPUs whenever a topology update
occurs. These uevents currently have no users and they are also not
present on other architectures. As they are not necessary, remove
these extra uevents.

Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

Author: NickJackolson

arch/s390/kernel/topology.c

@@ -320,16 +320,10 @@ static int __arch_update_cpu_topology(void)
 
 int arch_update_cpu_topology(void)
 {
-	struct device *dev;
-	int cpu, rc;
+	int rc;
 
 	rc = __arch_update_cpu_topology();
 	on_each_cpu(__arch_update_dedicated_flag, NULL, 0);
-	for_each_online_cpu(cpu) {
-		dev = get_cpu_device(cpu);
-		if (dev)
-			kobject_uevent(&dev->kobj, KOBJ_CHANGE);
-	}
 	return rc;
 }